Answer:
When x = 8.4 and y = .8 then 4x + 8y = 40
Step-by-step explanation:
4x + 8y = 40
y = .8
Let's solve for x by substituting .8 for y (since y is given)
4x + 8(.8) = 40
4x + 6.4 = 40 Subtract 6.4 from both sides.
4x + 6.4 - 6.4 = 40 - 6.4
4x = 33.6 Divide each side by 4
4x/4 = 33.6/4 4 cancels on the left because 4/4 = 1
x = 33.6/4
x = 8.4
So when x = 8.4 and y = .8 then 4x + 8y = 40
Answer:
(1, 1)
Step-by-step explanation:
this is the only point that is in the overlapped shading area
Answer:
y= - 2x-4-8
or try math-way
Step-by-step explanation:
85C - 170A = 306 ---------- (1)
255 + 85B = 714 ------------(2)
(1) + (2):
85C + 85A + 85B = 1020
Divide by 85 through:
A + B + C = 12
The total of A, B ad C is 12.
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Find average :
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The average of A, B and C is 12 ÷ 3 = 4
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Answer: The average of A, B and C is 4.
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